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AARONBUIJL, or'cARoLiNE, NEW YORK.

' 1ivracnfi'nn"ron enna-Nine, scounf'ivq, AND'coNvEYInG iin-MN, :ANnfoooLI-NG,

BoLTrNG, -lnim CONVEYING rLoUR.

To czZ'Z'wittomIt/tmag/ concern.' t

Be it known that I, AARoN BmlL,of^Car oline, Tompkins, county,`Stateof-New York, have invented a new and luseful-lJ/Iachine for Cleaning Smut from Grain, Elevating Grain, Flour, etc., and Cooling AFlour, which is described as follows, reference being had to the annexed drawings of the same, making part of this specification.

Figure l, section of a machine for cleaning and elevating grain, flour, etc., and also for cooling flour; Fig. 2, side elevation of ditto.

This machine, when used as a smut machine` consists of a hollow trunk A, Figs. l and 2 of suitable length, breadth, and height, closed at both ends, the top of said trunk being perforated with a number of oblong apertures B1 B2 B3 for the admission of t-he grain and the escape' of smut and dirt, over one of which openings the hopper C is placed. Cn the bottom of the trunk Vare arranged a number of inclosed planes Dl D2, Fig. 1, at suitable distances apart, in clined at an angle of about ten or fifteen degrees with the bottom and extending nearly to the top and then turning down and back in a curve line so as vto form a concave E for a revolving fan F2 to turn in. Under the hopper and at the elevated end of each inclined plane, except the upper one, is placed a revolving fan F, the axles of which extend horizontally through the sides of the trunk, suiiiciently far to receive pulleys Gr, Fig. 2, for bands H leading from the driving power (manual, horse, or steam) by which they are turned.

The upper inclined plane D2 has no fan, but there is an opening M in the bottom of the trunk, at the lower extremity of the concave E2 through which opening the cleaned grain descends into a spo-ut S placed below it, which conducts it wherever desired. The upper end of the trunk A when of suiiicient length may be left open at W. The apertures B in the top are provided with slides T for closing or opening them at pleasure, being left open when used as a smut machine and closed when used as a flour cooler,

etc.

In cleaning smut from grain the grain is put into the hopper C, Figs. l and 2, from whence it descends to the trunk A. It is there met by the wings of the first fan F1, carried around and driven along the trunk until it meets :the iirstfinclfinedplaiie D1, against which 'it -is (driven with vilence which r'brea-ksfthe smut firon'rrit and `whichfis driven out "of the Vtrunk tlirough the "aperture B2 in the top.v While the grain falls over the end of the inclined plane on to the second wheel F2, which is sheltered fro-m the current of the first wheel by the rising of the inclined plane. The second wheel drives the grain against the second inclined plane D2 where the grain is treated in a similar manner, and so on until thoroughly cleaned, when it falls over the end of the last inclined plane and passes thro-ugh the aperture M in the bottom to the spout S, which conducts it away to any place desired.

For simply conveying grain the apertures B2 B3 in the top may be closed by'. the slides T and the end of the trunk be left open at W. In both operations the machine should be placed in an inclined position, as represented in Figs. l and 2. It may, ho-wever, be placed in an horizontal positio-n for some purposes.

In using the machine for cooling flour preparatory to bolting it, the flo-ur should be conducted from the mill, or other place, by a spout I represented by dotted lines, into the trunk A and thence driven into the bolt of the common form by the revolving fan F1. In performing this operation the inclined planes and second and third fans are omitted and the openings in the top and bottom are closed, while the end of the trunk which leads to the bolt is left open.

The flour may be partially bolted with this machine in a large closed room by means of thev current of air which drives the iiner iiour out at the end of the trunk and sends it to a greater distance therefrom while the coarser flour being the heaviest will settle sooner and near the end of the trunk, and thus the flour may be partially bolted without a revolving bolt, in which case the apertures B2 B3 in the top and' the aperture M in the bottom must be closed and the end WV left open.

When the machine is used for scouring wheat the trunk must be made long enough to prevent the current of air from driving the grain out at the end of the trunk, the grain being made to fall over the last inclined plane above and pass out at the 0pening M in the bottom of the trunk, or the upper end of the trunk must be kept closed to prevent the escape of the grain. When the flouris to be drivenvbut a short distance only one fan Will be needed and no inclined plane. Y

, The capacity of thetrunk should'not be too large for the volume of-air to be drivenn through it. Y

rMeal as Well as Hour may be cooled, bolted and conveyed infthis machine.V 4

What I claim as my invention and desire to secure by Letters Patent is,- n

The before described 'mode of cleaning, scouring, and conveying grain; and cooling, bolting, and conveying flour by a current of air, produced revolvingffansarranged 15v in an horizontal or inclined trunk icontaining inclined planes for breaking the smut I and sheltering the forward Wheels from theV current of air and apertures for the escape of the smut and apertures orfthe ,passage 20 of the'grain,f1our, etc., as described, the current of air being produced in the. mode above described for in any other vmode substantially the same.V AARON BULL. VWitnesses: j f

EDMUND MA'HER, CALVIN BETTS. 

